CN202253471U

CN202253471U - Tandem device of alternative-current light-emitting diode

Info

Publication number: CN202253471U
Application number: CN2011203361323U
Authority: CN
Inventors: 张家成
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-08
Filing date: 2011-09-08
Publication date: 2012-05-30
Anticipated expiration: 2021-09-08

Abstract

The utility model provides a tandem device of an alternative-current light-emitting diode, comprising a first LED (Light-emitting Diode) tandem group, a second LED tandem group, a third LED tandem group, a fourth LED tandem group and a fifth LED tandem group, a constant current IC (Integrated circuit) and an alternative-current power supply, wherein each LED tandem group is formed by connecting a plurality of light-emitting diodes in series, and anode and cathode two ends are formed on each LED tandem group; the cathode of the first tandem group is connected with the anode of the second tandem group; the cathode of the second tandem group is connected with the anode of the third tandem group; the cathode of the third tandem group is connected with the anode of the fourth tandem group; the cathode of the fourth tandem group is connected with the cathode of the first tandem group and the anode of the second tandem group; the anode of the fifth tandem group is connected with the cathode of the second tandem group and the anode of the third tandem group; the cathode of the fifth tandem group is connected with the anode of the first tandem group; the constant current IC is connected with the cathode of the third tandem group and the anode of the fourth tandem group; one end of the alternative-current power supply is connected with the cathode of the fifth tandem group and the anode of the first tandem group, and the other end of the alternative-current power supply is connected with the constant current IC. According to the utility model, each tandem group not only has a function of emitting light, but also has an aim of rectifying.

Description

The alternating-current light emitting diode serial data device

Technical field

The utility model relevant a kind of simple in structure, cost is low and can effectively reduce the alternating-current light emitting diode serial data device of power consumption.

Background technology

Be different from fluorescent tube by electron-beam excitation fluorescence, the photoelectric effect that light emitting diode (LED) utilizes junction rectifier to produce is come luminous.The optical wavelength that light emitting diode produced is more stable, and brightness is also controlled through electric current easily.Add that light emitting diode has cold light, volume is little and the electricity-saving characteristic, and the life-span be 10 times of fluorescent tube, therefore become the market mainstream gradually.

Traditional LED serial device provides electric current by an AC power, and this electric current at first needs by the bridge rectifier rectification, and several light emitting diodes of just flowing through then make light emitting diode luminous in the equal ability of the positive negative cycle conducting of AC power.

Yet; The design of above-mentioned LED serial device, because after long-time the use, the light emitting diode problems of excessive heat can influence light emitting diode service life; Therefore how to avoid the consumption of power; Reduce the component of light emitting diode simultaneously, thereby reduce production cost and module microminiaturization, the problem that current especially led lamp field is to be solved.

Summary of the invention

The main purpose of the utility model provide a kind of simple in structure, cost is low and can effectively reduce the alternating-current light emitting diode serial data device of the consumption of power.

For reaching above-mentioned purpose; A kind of alternating-current light emitting diode serial data device of the utility model; Comprise one first～the 5th LED tandem group, certain electric current I C and an AC power, wherein this each LED tandem group comprises that several light emitting diode series connection form, and it is formed with the positive and negative electrode two ends; Wherein a LED tandem group negative pole is connected with the positive pole of the 2nd LED tandem group; The negative pole of the 2nd LED tandem group is connected with the 3rd LED tandem group is anodal; The 3rd LED tandem group negative pole is connected with the 4th LED tandem group is anodal; The 4th LED tandem group negative pole is connected with the negative pole of a LED tandem group and the positive pole of the 2nd LED tandem group; The 5th LED tandem group is anodal to be connected with the 2nd LED tandem group negative pole and the 3rd LED tandem group positive pole; And the negative pole of the 5th LED tandem group is connected with a LED tandem group is anodal; Be connected with the 3rd LED tandem group negative pole, the 4th LED tandem group positive pole and should decide electric current I C; This AC power one end is connected with the positive pole of the 5th LED tandem group negative pole, a LED tandem group, and other end is then decided electric current I C with this and joined.

During enforcement, comprise a current-limiting resistance, in order to modulated current.

The useful technique effect of the utility model is; First～the 5th LED tandem group not only has the lighting function of providing; More have the purpose of rectification concurrently; So can effectively reduce the quantity of overall structure electronic component, make cost reduce, reduce structure space, more can reduce the power that consumes because of electronic component reduces.

For further understanding the utility model, below lift preferred embodiment, cooperate diagram, figure number, concrete constitution content of the utility model and the effect of being reached thereof are specified as the back:

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment.

[main element symbol description]

1 the one LED tandem group

2 the 2nd LED tandem groups

3 the 3rd LED tandem groups

4 the 4th LED tandem groups

5 the 5th LED tandem groups

6 decide electric current I C

7 AC powers

8 current-limiting resistances

The specific embodiment

See also Fig. 1, be an embodiment of the utility model alternating-current light emitting diode serial data device, it is made up of one first～the 5th LED tandem group 1～5, certain electric current I C6 and 7 of AC powers.

This each LED tandem group 1～5 comprises that several light emitting diode series connection form, and it is formed with the positive and negative electrode two ends.Wherein, the negative pole of a LED tandem group 1 is connected with the positive pole of the 2nd LED tandem group 2; The negative pole of the 2nd LED tandem group 2 is connected with the positive pole of the 3rd LED tandem group 3; The negative pole of the 3rd LED tandem group 3 is connected with the positive pole of the 4th LED tandem group 4; The negative pole of the 4th LED tandem group 4 is connected with the negative pole of a LED tandem group 1 and the positive pole of the 2nd LED tandem group 2; The positive pole of the 5th LED tandem group 5 is connected with the negative pole of the 2nd LED tandem group 2 and the positive pole of the 3rd LED tandem group 3, and the negative pole of the 5th LED tandem group 5 is connected with the positive pole of a LED tandem group 1.

Should decide electric current I C6 is connected with the negative pole of the 3rd LED tandem group 3, the positive pole of the 4th LED tandem group 4.

These AC power 7 one ends are connected with the negative pole of the 5th LED tandem group 5, the positive pole of a LED tandem group 1, and other end is then decided electric current I C6 with this and joined.

Therefore, during enforcement, through the annexation of above-mentioned first～the 5th LED tandem group 1～5; Can make and form a function as bridge rectifier; Replace existing design and must be dependent on a bridge rectifier rectification, thus, first of the utility model～the 5th LED tandem group 1～5 not only has the lighting function of providing; More have the purpose of rectification concurrently; So can effectively reduce the quantity of overall structure electronic component, make cost reduce, reduce structure space, more can reduce the power that consumes because of electronic component reduces.

Again, during enforcement, the utility model alternating-current light emitting diode serial data device more comprises a current-limiting resistance 8, in order to modulated current.

The above is specific embodiment of the utility model and the technological means of being used; Can derive according to the exposure of this paper or instruction and to derive many changes and correction; If the equivalence of doing according to the conception of the utility model changes; When the effect that it produced does not exceed specification and the graphic connotation of containing yet, all should be regarded as within the technological category of the utility model, closing first Chen Ming.

According to the content that preceding text disclosed, the utility model really can reach the intended purposes of invention, and a kind of alternating-current light emitting diode serial data device is provided, and has industry utilization and practical value.

Claims

1. an alternating-current light emitting diode serial data device is characterized in that, comprising:

First～the 5th LED tandem group, each LED tandem group comprise that several light emitting diode series connection form, and it is formed with the positive and negative electrode two ends; Wherein,

The negative pole of the one LED tandem group is connected with the positive electrical of the 2nd LED tandem group; The negative pole of the 2nd LED tandem group is connected with the positive electrical of the 3rd LED tandem group; The negative pole of the 3rd LED tandem group is connected with the positive electrical of the 4th LED tandem group; The negative pole of the 4th LED tandem group is connected with the negative pole of a LED tandem group and the positive electrical of the 2nd LED tandem group; The positive pole of the 5th LED tandem group is connected with the negative pole of the 2nd LED tandem group and the positive electrical of the 3rd LED tandem group, and the negative pole of the 5th LED tandem group is connected with the positive electrical of a LED tandem group;

Decide electric current I C for one, be connected with the negative pole of the 3rd LED tandem group, the positive electrical of the 4th LED tandem group;

An AC power, an end is connected with the negative pole of the 5th LED tandem group, the positive electrical of a LED tandem group, and other end is then decided electric current I C with this and is joined.

2. alternating-current light emitting diode serial data device as claimed in claim 1 is characterized in that, comprises a current-limiting resistance in order to modulated current.